Mechanical calculator.



F. E. WBBNB-R:

MECHANICAL CALCULATOR.- 1 APPLICATION PILD SEPT. 9, 1907.

997,483. Phtented July 11, 1911.

9 If I WITNESSES 'nvi gjvrme jv I v ATTORNEY.-

UNITED STATES PATENT OFFICE.

-FRA'.NK E. WEBNER, 0F NORWOOD, OHIO, ASSIGNOR TO THE AMERICAN MECHANICAL CALCULATOR COMPANY, OF (JIN'CINN'.ATI, OHIO.

IMEGHANICAL CALCULATOR.

Specification of Letters Patent.

Patented July 11, 1911.

Application filed September 9, 1907. Serial No. 391,895.

lators, of-which the cation.

The object of my invention is to novel, simple and eflicicntmeans provide chanically calculating elapsed time or making other calculations involving subtractions; means for mechanically calculating wages, or prices, or making other multipli cations; and to produce ca ulating mechanism which requires no mathematical calculations on thefpart of the operator, and which dispenses with the use of key boards.

or equivalent devices which require manipulation for each digit of the number to be treated. i

My inventio consists in the parts and combination and arrangement of partshereinafter described and claimed,

I have illustrated my invention as applied wage computation upon the time system, but it is equally applicable to wage computationupon the piece system or to price computation, or to any computation where in it is practicable to deal with a selected number of multipliers and multiplicands. For convenience the wage rate will be treated as themultiplicand, the elapsed time as the multiplier and the product obtained by multiplication of tlie figures denoting the wage rate by the figures denoting any period of elapsed time as the'multiple.

view with a portion of the casing broken away; and Fig. 2 a vertical section on the v WlllC'h counts as zero in themeasurement of The numeral 1 designates a casing, 2 a' wage rates or multiplican'ds,.and also carries in column, disposed transversely of us.

of numerals I; each series de length series 7 of one .of the senoting selected. multiples lectediwage rates or multipticzinaQ A plate 6 fixed to the'casing' carries alseries offn-uboanerals denoting time ,or other E. WEBNER, "a

useful Improvement in Mechanical Calcu-' following is a specifi on plate 6,

hole 20; carries a "denoting the se i 1 tipliers. The casing has an opening 7, preferably covered with glass, above the plate 6, and of sufficient width to includethe plate 6 and one column of multiples on the belt 5. By rotation of the shaft 2, any column of numerals denoting multiples may be brought into juxtaposition with the time or multiplier series and under the opening 7.

8 indicates a gage or dialplate rotatably mounted upon a shaft 9, graduated to'correspond with the time or multiplier series movable independently of the other mechanism. A stationary pointer or other index mark 10 isprovided for setting the dial plate which is preferably provided with'knobs 8'' whereby it may be rotated by hand. A hand lever 11 carrying a pointer 12 is fixed to shaft 9 immediately dial plate. Sliitft 9 carries a spur gear 13 adapted to'engage with a spur gear 14 on a shaft 15 upon which is mounted a sprocket wheel 16 which with a corresponding wheel 16 carries a belt 17 preferably of sheet steel provided with openings registering fwith pins 18 on sprocket wheel 16. The belt is arranged to travel under the opening 7 in the casing and over the plate 6 and over a positioned column of multiples, and is provided with slits 19 adapted to disclose one multiplier and the corresponding multiple. The graduation on the gage, or dial, plate, is such that movement of the hand lever 11 one step relatively'to. the dial plate, movesthe traveling belt-17 }o'ne step relatively to. the multiplier and multiple series. The

elapsed time indicated depends upon the position ofthe handbariin its arc oftravel. The stationary oint'er'fmarks the no degree and the 360 egreepointy Its primary function isto. designate a point in the circle the arc.

, In operation' tlie hand wheel 3 isit irned to bring the proper rate into view iii peep The dial is set to bring theitime of beginning work as indicated by the wage slip opposite the pointer 10.- The hand lever 11' then turned from whatever position it maylocoupy' to the time :offinishing work as denoted by the dial plate. This brings the slits in belt 17 over the figures denoting the elapsed time and the figures multiple of the wage rate by the numerals denoting the elapsed time.

'In the illustration t, e wage gate-2'5 is posie above the tioned, the dial is-set to 12 as the time of beginning work, andthe hand lever to 9 as the time of finishing work, and the slits disclose 9.00 as the e 5 the Wage for that time. The plate 6 with its series of numerals indicates time periods generally. The belt 17 with its slits, selects and points out,ior indicates, a specific time I period, or multiplier, and a specific multi- 10 ple, in accordance with the position of the hand bar in its arc of travel. The work of the operator is purely mechanical. -He has only to select and position the proper rate, set the dial to the time v of beginning work, turn the hand bar to the time of finishing work, and copy the figures.

If the rate, and elaps'ed'time on the next slip are the same, he has only to copy the figures. If the rate and time of beginning work are the same,-bnt-the-time of finishing ditie-rs,lhe has on'ly to turn the hand barto the time of finishing and copy the figures.

' When themachine isto be used for cal- 'culating wages for piece work or makingother calculations not involving subtraction,

the dial plate 8 need not be movable as the calculation always starts from naught.

While I have illustrated the dial as graduated in half hour periods, it will usually be graduated to such shorter periods as denote the shortestperiod of time which is taken into account in figuring wages, and the multipliers and multiples will be arranged to correspond.

I claim as my invention:

1 The combination, in a calculating machin'e, of time indicating members; an actuating member; gearing operated by the actuating member and adapted to so correlate the t-ime'indicating members that they will indicate elapsed time in accordance with the position of the actuating member relatively to a predetermined zero point in its arc of travel; anda gage graduated in time pe- '-riods, and adjustable relatively to the zero .point, whereby the-beginning time for any calculation may be inade to correspond with the zero pointand the calculation made by moving the actuating member to a. position determined-by the ending time as denoted by the gage. 1 I

2. The combination,'in a'ealculating machine, of time indicating members; an axially mounted actuating member; gearing operated by the actuating member and adapted to so correlate the'time indicating members that they will indicate elapsed time in accordance with the. position of the actua'iing member relatively to a predetermined zero point in its arc of travel; and an are shaped gage graduated in time periods, and adjustable relatively to the zero point, whereby the beginning time for 'any calcu lation may be made to correspond with the 55 zero point and the calculation made by movapsed time and 2.25 as carrying I multipliers; one of said members being movable relatively to-the other means for actuing the actuating membei'to a position de termined by the ending time is denoted by the th gh: combination, in.a calculating machine, of a member carrying a series of characters denoting selected multiplicands and a series of columns of characters, the charac- -ters in each column denoting multiples of one of the selectedmulti licands; a member I a series of aracte'rs denoting ating the movable member to bring any column of multiples into juxtaposition with the multi lier series; an indicatin member 30 mova le relatively to .the multiplier and multiple series; a age plate graduated to correspond with' t e multiplier series; an actuating member; gearing connecting the actuating member andtheindicatin member and adapted to position the in icating member to indicate a multiplier and the corresponding multiple of the selected multiplicand, the graduation of the scale on the gage plate being such that movement ofthe actuating member one step relatively to the scale moves the indicatix'igm ember one step relative to-the multiplier and multiple series.

4. The combination,- in acalculating machine f a'member carrying a series ofcharacters denoting selected multiplicands and a series of columns oft-characters, tlie'characters in each column denotingmultiples of 'one' of the selected multiplicands; a member carrying a series of charactersdenoting multipliers, one of said members being movable re atively to the other; means for, actuating the movable'member to bring any-column of multiples into juxtaposition with the'mul; tiplier series; an indicating member movable relatively tothe multiplier :ind multiple series; an are shaped gage plate graduated to correspond with the multiplier series; an axially mounted actuating member; gearing connecting the actuating member and the indicating member and adapted to position the indicating member to indicate a multi'- plier and the corresponding multiple'fof the selected multiplicand, the graduation of the scale on the gaze plate being such that move I inent of the actuatingv member one step relatively to thescale moves the indicating member one step relatively to the multiplier and multiple series. 7

- 5. The combination, in a calculating-mawe chine of a belt mounted to travel transversely of the casing and carrying'a Series of characters dcnoiin'g' wage rate orinultiplicands. and a sericsof i-olumns' 1.'l"rhari1c- .ters. the rharm'l rsin each column zoiing multiples of one of the war-31 rates or muliiplicands; a lixcd plate *:1 wiring a s. of cl'mrartors detailing time or multipliers: means tor initiating the belt t bring any column of multiples inzo juxtaposition with the multiplier series; a gage plate graduated to correspond with the 'multiplierseries; a hand lever movable relatively to the ga. e

plate; a'belt mounted to travel longitu nally of the 'ca'singfover the fixedplate, and provided with a slit or slits adaptedto disclose a multiplier and the corresponding multiple; and gearing adapted to drive the belt and adapted to be actuated bytthe hand lever.

6; The combination ina 'ciilculatin -ma-' .ch1ne,0f a member carry nga'ser es characters, denoting selected multiplicands,and

a seriesof columns of characters, the'charac'- tel's in each column denoting multiples of; one of the selected multiplicands; a member.

carryin a series of characters denoting mul- 1 tipliers, one of said members. being movable relatively to the other; means for bringingany multiple series into juxtaposition with the multiplierv series; selectingmechanism Pmov-able relatively to the multiplier and multiple series; means for-actuating theselectthe multiplier and multiple series.

- -7.' The combination, in acalculatin chine, of a member carrying a series 0 char- 2 any multiple series into. .juxtap'osition with ing mechanism; and a movabl e'ga'ge plated mounted in juxtaposition to the actuating member and graduated to correspond. with? the multiplier series; the graduationbein'g" such that movement of theactuating member one step relatively to the scale-moves the seiecting mechanism one .step relatively: to

ina-

acters denoting selected. multiplicands, and

-a series of columnsof characters; the charac ters in each column denoting multiples of one of the selected multiplicands'; 'a member carrying a series of characters denoting mul-Q tipliers, one of said members being movable relatively to the other; .means for bringing copies oil this patent may be attained to:

the multiplier. series; selecting mechanism movable relatively to the multiplier and multiple series; an axially mounted member connected with and adapted to actuate the selecting mechanism to bring it into alinement'wit-h any multiplier and'the corresponding multiple; and an are shaped gage plate mounted inju'xtaposition to the actuating member, movable relatively thereto, and graduated to correspond with the multiplier series, the graduation being such that relativelyto the scale moves the selecting mechanismone step relatively to themifltithe multiplier series; a movable gage plate graduated to correspond with the multiplier series; a hand lever movable relatively to movement of the actuating member. one step j the gage plate;- abeltmounted to travel I,

longitudinally. of the casing over the fixed plate, and provided'with a'slit or slits adaptedto disclose a multiplier and the corresponding multiple and gearing adapted to the handlever. i

I v "-FRAN K E. WERNER.

witnessesz" G ANT;

1 W; W. Snares."

five cents each, by addressing the commissioner of Yatents, washington, D. 0.;

drive the beltand adapted to .be actuated by 

